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package org.apache.qpid.perftests.dlq.client;
import static org.apache.qpid.perftests.dlq.client.Config.*;
import java.util.Properties;
import java.util.concurrent.Callable;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.Session;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.client.configuration.ClientProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Parent abstract class for all performance test clients that connect to a
* broker and perform test operations. All clients are {@link Callable}
* objects that return an integer value, or throw an exception. The
* {@link #connect()} method returns a boolean to indicate whether the
* broker connection succeeded, and can be used to abort tests if there is
* no available broker.
*/
public abstract class Client implements Callable<Integer>
{
protected static final Logger _log = LoggerFactory.getLogger(Client.class);
protected Properties _props;
protected String _broker;
protected int _maxRedelivery;
protected int _maxPrefetch;
protected int _sessionType;
protected boolean _transacted;
protected boolean _clientAck;
protected String _queueName;
protected int _count;
protected boolean _messageIds;
protected boolean _persistent;
protected int _size;
protected int _threads;
protected int _maxRecords;
protected Connection _connection;
protected Session _session;
protected Destination _queue;
protected String _client = "client";
public Client(Properties props)
{
_props = props;
init();
}
public void init()
{
_broker = _props.getProperty(BROKER);
_maxRedelivery = Integer.parseInt(_props.getProperty(MAX_REDELIVERY));
_maxPrefetch = Integer.parseInt(_props.getProperty(MAX_PREFETCH));
_sessionType = getSessionType(_props.getProperty(SESSION));
_transacted = _sessionType == Session.SESSION_TRANSACTED;
_clientAck = _sessionType == Session.CLIENT_ACKNOWLEDGE;
_queueName = _props.getProperty(QUEUE);
_persistent = Boolean.parseBoolean(_props.getProperty(PERSISTENT));
_count = Integer.parseInt(_props.getProperty(COUNT));
_size = Integer.parseInt(_props.getProperty(SIZE));
_messageIds = !Boolean.parseBoolean(_props.getProperty(MESSAGE_IDS));
_threads = Integer.parseInt(_props.getProperty(THREADS));
_maxRecords = Integer.parseInt(_props.getProperty(MAX_RECORDS));
}
public void shutdown()
{
try
{
_connection.close();
}
catch (JMSException e)
{
_log.error("failed shutting down the connection", e);
}
}
public int getSessionType(String sessionType)
{
if (sessionType == null || sessionType.length() == 0)
{
throw new RuntimeException("empty or missing session property");
}
else if (sessionType.equalsIgnoreCase(SESSION_TRANSACTED))
{
return Session.SESSION_TRANSACTED;
}
else if (sessionType.equalsIgnoreCase(AUTO_ACKNOWLEDGE))
{
return Session.AUTO_ACKNOWLEDGE;
}
else if (sessionType.equalsIgnoreCase(CLIENT_ACKNOWLEDGE))
{
return Session.CLIENT_ACKNOWLEDGE;
}
else if (sessionType.equalsIgnoreCase(DUPS_OK_ACKNOWLEDGE))
{
return Session.DUPS_OK_ACKNOWLEDGE;
}
throw new RuntimeException("session property not recognised: " + sessionType);
}
public boolean connect()
{
String url = "amqp://guest:guest@" + _client + "/test?brokerlist='" + _broker + "'&maxprefetch='" + _maxPrefetch + "'&maxdeliverycount='" + _maxRedelivery + "'";
System.setProperty(ClientProperties.MAX_DELIVERY_RECORDS_PROP_NAME, Integer.toString(_maxRecords));
try
{
_connection = new AMQConnection(url);
_session = _connection.createSession(_transacted, _sessionType);
_queue = _session.createQueue(_queueName);
_connection.setExceptionListener(new ExceptionListener()
{
public void onException(JMSException e)
{
_log.error("jms exception received", e);
System.exit(0);
}
});
return true;
}
catch (Exception e)
{
_log.error("Unable to setup connection, client and producer on broker", e);
return false;
}
}
public abstract void start() throws Exception;
public Integer call() throws Exception {
start();
return -1;
}
}
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